Power-driven mowing machine



Dec. 26, 1922. 1,439,727

.R. C. CHATTIN. POWER DRI VEN Mow NG MACHINE. FILED MAY 9. 192

INVENTOR i 2. c. Cfiazzi/r a 6 W 66.

ATTORNEYS Patents Dec; 26, 1922.

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- ROBERT C. CHA'ETIN, GE IEEQUNTAIII HOME, IDAHQ.

POXVEB-DHIVEN FIGH ING. li LACHTN Application filed Biay 3, 1921. Serial No. 467,921.

tion.

My invention relates. to mowing machines.

in which a cutter blade is reciprocated by power means independently of the movement of the ground wheels, and it consists in thecombinations, constructions, and arrangements herein described and-claimed.

An object of my invention is to provide a device of the-characterdescribed in which the operation of the cutter blade may be controlled at will.

.A further object of my .invention is to provide a device ofthe character described in whichthes need of the driven cutter blade may be varied at will independently of the movement of the ground wheels, whereby the blade may be driven rapidly or slowly according to the varying requirements of the service in which employed.

Afurther object of my invention is to provide a .deviceof the character described that is constructed to effectthe balancing of the weight thereof on the axle of the ground wheels so that the stress on the draft animals-employed to draw the device is reducedto a minimum.

A further object of my invention is to provide a device'of the character described that is simple in construction and is not likely to get out ofv order or become impaired easily in service since it comprises relatively few parts and no gears.

A further object of my invention is to provide adevice of the character described in which the frame and cutterbar or sickle of a mowing machine of an ordinary type of construction may be utilized and means quired to occasion the driving of the cutter bar removably secured upon the frame in a short time and with the use of but a few tools.

Other objects and advantages will appear in the following specification, and the novel features of the invention will be particularly pointed out in the appended claim.

My invention is illustrated in the accompanying drawings, forming part of this application, in which Fig. 1 is a plan View of the device,

F is a rear view the same after portions thereof have been removed for clearance,

I Fig. 3 is a plan view of a fragmentary portion of the device,

Fig. 4 is a bottonrperspective of an engine frame embodied in the device, a

Fig. 5 is a sectional detail of a clutch mechanism embodiedin the device, and

Fig. 6 is a sectional detail of another portion of the device. l

in carrying out my invention, I provide a frame indicated generally at 1. The frame 1 'isformed to provide a housing 2 for an axle 2 having mounted on the ends thereof ground wheels 3. housing 4 is also no vided for a pitman shaft 5 having 'a disk 6, at its forward end. A pitman 7 is connected at one end by a wrist'pin 8 to the disk 6 and at its other end to a cutter blade or sickle bar 9 that is arranged to co-act with a blade 10 carried by a frame 11. The latter is lunged at one end to members seinto effect, I may make use of a well known type .of mowing machine and may remove parts therefrom until only the parts enumerated remain;

I mount upon the framei adapted to support an engine 15 which may be ofany well known type of construction.

The frame leis preferably made of metal cast in a single piece and isforined with de a frame 14] '80 cured to the frameso that the frame 11 n'iay pending bosses or extensionslti and-17. The

boss oreXtension 16 is curved at 18 to conform with the upper surface of the axle housing 2 and the boss l'iis curved at19 to lit the pitman shaft housing 4;. The engine frame 14L is arranged with a depending integral'lug or extensionQO at one end of the axle housing 2. The bosses or extensions 16 and 17 rest upon the axle housing 2 and'the pitman shaft housing 4, respectively, and serve as saddles for the body'of the frame The extension is formed with an opening 21 through which the axle 2 passes.

yoke bands 26 secured to the bosses 16 and l? by cap screws or bolts in order to clamp the bosses l and the pitman shaft housing l, respectively. lit will be noted that the bosses 16 and 17 have openings in their faces adapted to receive the bolts The wall of the opening 21 serves as a l ring for the main axle and also tends to maintain the frame i lin a desired position on the frame 2 with respect to the pitman shaft 5. A spacing sleeve 29 disposed on the axle 2 between the lug 2O is and the adjacent wheel 3.

A pair of supporting members 3030 are secured to the frame 1 as at 31l31 and 3232 and extend rearwardly thereof as shown. it tank 33 adapted to contain water or a like fluid is mounted on a platform 3%; that is secured to the supporting bars adjacent to the rearward ends of the latter. A fuel tank 35 is n'iounted upon the tank 33, being supported by arms 6-36 secured to the latter. A supply conduit 3? and a return conduit 38, which may have the form of flexible tubes, connect the tank 33 with the engine 15. The latter is provided with ordinary means (not shown) for causing the circulation of liquid from the tank 33 through the walls of the engine to cool the latter in accordance with the general and well known practice. It is to be noted that the engine is rigidly secured to the engine frame 14, bolts 39 being projected through the base of the latter and through openings 40 in the frame 1d. A conduit 41 is provided for conductin fuel from the tank 35 to the engine 10. I i i The engine 15 has a drive shaft 42 and a suitable clutch mechanism is connected therewith. In the present instance. the clutch mechanism comprises an inner cone ri idly secured to the drive shaft and an outer friction pulley 41%!- having a hub 1:5 slidable on the shaft.

The outer friction pulley lelis normally maintained in clutching engagement with the inner cone by a spring 416*(see Fig. i The hub 4:5 is threaded ex teriorly and a, sprocket 5L6, is screwed thereand 1.? to the axle housing 2 on, being tightened when turned in the d1- rection opposite to that normally taken by the rive shaft. A. bearing 2? for the drive extends between the engine 15 and the 5 and has a pin 48 projecting through a guide slot as in a concentric outer sleeve 50. lhe latter is provided with a handle 51 operable from the drivers seat, whereby the sprocket 46 may be thrown into and out of engagement with the drive shaft 42 at will.

A sprocket wheel 53 is mounted on the end of the pitman shaft 5 and is arranged to rotate therewith, being secured by rivets 5a to the flange of a sleeve that is mounted on the pitman shaft 5 and secured thereto by a pin 56 or the like. chain 5'? operatively connects the sprockets d6 and 53 and passes through recesses 58 and 59 in the rear end wall of the frame 1d without contacting the latter.

From the foregoing description of the va- The cutter mechanism is operated at a uniform speed which may be varied as the occasion requires. The supporting members 3i extend rearwardly of the frame 1 and the tanks 33 and 35 are supported thereby at a spaced distance from the connection of the frame 1 with theaxle 2, whereby a balanced co; truction is obtained and the welgl'it of the entire device is imposed directly upon the axle and not partially upon the draft animals, as is ordinarily the case.

A. chain guard 60 for the sprocket 53 prevents thefouling of the latter by cut hay or the like.

I claim:

A mowing machine comprising a frame provided with a transverse aXle housing an axle rotatably mounted in said housing, a pair ofwvlieels for supporting said axle, a cutter blade carried by said frame, an auxiliary frame secured to said first named frame directly over said housing, and an engine for driving said cutter blade, mounted on said auxiliary framathe weight of said engine and its associated mechanism together with the cutter blade and its associate mechanism, being evenly distributed on both sides of said axle.

ROBERT C. (ll-TATTIN. 

